/* ------------------------------------------------------------------
   css/glossary.css — the /glossary page: globe stage + term list.
   Prefix sl-gl-. Loaded only by glossary.html.

   Theme note. The stage is deliberately dark in BOTH themes: it is an
   instrument panel, not page surface, and a starfield on white reads as
   a mistake. Its colours therefore live in local tokens here and do not
   depend on the site's theme tokens — which also means js/glossary.js
   has no reason to listen for sl:themechange. Everything around the
   stage (headings, list, links) follows the site theme normally.
------------------------------------------------------------------ */

.sl-gl-page {
  --sl-gl-sky-top: #05060a;
  --sl-gl-sky-mid: #0b1120;
  --sl-gl-sky-glow: #b9c4ff;
  --sl-gl-edge: rgba(140, 160, 255, .16);
  --sl-gl-ink: #eef1f8;
  --sl-gl-ink-dim: #93a0ba;
  --sl-gl-stage-h: 62vh;

  max-width: 68rem;
  margin: 0 auto;
  padding: 0 var(--sl-gap, 1.5rem) 5rem;
}

/* ---- masthead ---------------------------------------------------- */

.sl-gl-head { padding: 2.5rem 0 1.75rem; max-width: 44rem; }

.sl-gl-head h1 { margin: 0 0 .6rem; }

.sl-gl-intro { margin: 0; max-width: 40rem; line-height: 1.6; }

/* ---- the globe stage --------------------------------------------- */

.sl-gl-stage {
  position: relative;
  height: var(--sl-gl-stage-h);
  min-height: 320px;
  border-radius: 14px;
  overflow: hidden;
  background:
    radial-gradient(130% 60% at 50% 122%, var(--sl-gl-sky-glow) 0%, #5f6fd0 15%, #232f5e 38%, transparent 70%),
    radial-gradient(90% 70% at 80% -10%, #131a30 0%, transparent 60%),
    linear-gradient(180deg, var(--sl-gl-sky-top) 0%, #080d18 55%, var(--sl-gl-sky-mid) 100%);
  border: 1px solid var(--sl-gl-edge);
  display: flex;
  align-items: center;
  justify-content: center;
  touch-action: none;
}

.sl-gl-stage canvas { display: block; width: 100%; height: 100%; }

/* vignette, above the canvas, inert */
.sl-gl-stage::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(120% 90% at 50% 45%, transparent 55%, rgba(2, 3, 6, .5) 100%);
}

.sl-gl-fallback {
  margin: 0;
  padding: 0 2rem;
  text-align: center;
  color: var(--sl-gl-ink-dim);
  font-size: .95rem;
}

/* js/glossary.js sets .is-ready once the canvas is mounted */
.sl-gl-stage.is-ready { cursor: grab; }
.sl-gl-stage.is-ready .sl-gl-fallback { display: none; }
.sl-gl-stage.is-dragging { cursor: grabbing; }

.sl-gl-hint {
  margin: .75rem 0 0;
  font-size: .75rem;
  letter-spacing: .06em;
  text-transform: lowercase;
  opacity: .55;
}

/* ---- the term list (generated region) ---------------------------- */

.sl-gl-pending { margin: 3rem 0; opacity: .7; }

.sl-gl-group { margin: 3.5rem 0 0; }

.sl-gl-group > h2 {
  margin: 0 0 1.25rem;
  padding-bottom: .5rem;
  border-bottom: 1px solid currentColor;
  border-color: color-mix(in srgb, currentColor 18%, transparent);
  font-size: 1.05rem;
  letter-spacing: .02em;
}

.sl-gl-list { margin: 0; }

.sl-gl-term {
  padding: 1.1rem 0;
  border-bottom: 1px solid color-mix(in srgb, currentColor 10%, transparent);
  scroll-margin-top: 5rem;
}

.sl-gl-term dt {
  font-weight: 600;
  margin: 0 0 .35rem;
}

.sl-gl-term dd {
  margin: 0;
  max-width: 46rem;
  line-height: 1.6;
}

.sl-gl-more {
  display: inline-block;
  margin-top: .4rem;
  font-size: .82rem;
  letter-spacing: .02em;
}

/* the entry the globe is currently showing */
.sl-gl-term.is-active {
  background: color-mix(in srgb, currentColor 5%, transparent);
  box-shadow: -0.75rem 0 0 color-mix(in srgb, currentColor 5%, transparent);
}

/* ---- narrow screens ---------------------------------------------- */

@media (max-width: 640px) {
  .sl-gl-page { --sl-gl-stage-h: 56vh; }
  .sl-gl-head { padding: 1.75rem 0 1.25rem; }
  .sl-gl-hint { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .sl-gl-term.is-active { transition: none; }
}


/* ── Globe readout ────────────────────────────────────────────────────
   Appended for js/glossary.js. The stage clips its children, so the
   readout sits inside it rather than floating over the page — a card
   anchored to the node would be cut off the moment the node reached
   the edge. ------------------------------------------------------- */

.sl-gl-readout {
  position: absolute;
  left: 1.25rem;
  bottom: 1.25rem;
  right: auto;
  max-width: min(24rem, calc(100% - 2.5rem));
  padding: .85rem 1rem .9rem;
  border: 1px solid var(--sl-gl-edge);
  border-radius: 10px;
  background: linear-gradient(165deg, rgba(22, 28, 46, .92), rgba(9, 13, 24, .95));
  backdrop-filter: blur(10px);
  box-shadow: 0 18px 44px -20px rgba(0, 0, 0, .85);
  color: var(--sl-gl-ink);
  opacity: 0;
  transform: translateY(6px);
  pointer-events: none;
  transition: opacity .18s ease, transform .18s ease;
}

.sl-gl-readout.is-visible {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

.sl-gl-readout-term {
  margin: 0 0 .3rem;
  font-size: 1rem;
  font-weight: 600;
}

.sl-gl-readout-gloss {
  margin: 0;
  font-size: .8125rem;
  line-height: 1.5;
  color: var(--sl-gl-ink-dim);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.sl-gl-readout-more {
  display: inline-block;
  margin-top: .5rem;
  font-size: .78rem;
  letter-spacing: .02em;
  color: #9dc0ff;
}

/* A term title in the list turns the sphere to its node. */
.sl-gl-pointable {
  cursor: pointer;
  text-underline-offset: 3px;
}
.sl-gl-pointable:hover { text-decoration: underline; }

@media (max-width: 640px) {
  .sl-gl-readout {
    left: .75rem;
    right: .75rem;
    bottom: .75rem;
    max-width: none;
  }
  .sl-gl-readout-gloss { -webkit-line-clamp: 2; }
}

@media (prefers-reduced-motion: reduce) {
  .sl-gl-readout { transition: none; }
}

.sl-gl-foot {
  max-width: 68rem;
  margin: 0 auto;
  padding: 2rem var(--sl-gap, 1.5rem) 3rem;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.25rem;
  font-size: .875rem;
  opacity: .65;
}